Korolev B A, Karov V V, Romanov E I
Vestn Khir Im I I Grek. 1987 Nov;139(11):13-8.
The authors report that 282 of 457 patients (62%) are alive for 20-25 years after mitral commissurotomy. The twenty-five-year survival is higher in women (70%) than in men (30%).